'Bazinga!' Sonia Kruger pokes fun at her outfit as she and co-host David Campbell compare it to Sheldon Cooper's fancy dress costume on The Big Bang Theory

So when she walked on to the set of Today Extra on Thursday, there was no-one doubting the 50-year-old beauty was bang on-trend in an off the shoulder striped top with cape sleeve detailing.

However, it didn't take long for her cheeky co-host David Campbell to poke fun at her ensemble, taking to Instagram to post a side-by-side comparison to an outfit the 42-year-old spotted on The Big Bang Theory.

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'Bazinga!' Sonia Kruger (right) and David Campbell both poked fun at the 50-year-old's stripe cape top on Thursday, comparing it on Instagram to an outfit worn by Sheldon Cooper on The Big Bang Theory (left)

'Style stealers. Sonia got her inspiration from Sheldon this morning,' he captioned the shot.

The blonde beauty, who is known for her keen wit and sense of humour, re-posting the split screen image with an equally tongue-in-cheek caption.